Home / 99,726.57-149,588.67-28,650.96

Finding the Fourth Proportional to 99,726.57, 149,588.67 and 28,650.96

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Solution

The fourth proportional to 99,726.57, 149,588.67 and 28,650.96 is: 42,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,726.57 : 149,588.67 = 28,650.96 : x
  2. Step 2: Convert to fraction form
    99,726.57/149,588.67 = 28,650.96/x
  3. Step 3: Cross multiply
    99,726.57x = 149,588.67 × 28,650.96
  4. Step 4: Simplify right side
    99,726.57x = 4,285,859,000.62
  5. Step 5: Solve for x
    x = 4,285,859,000.62/99,726.57
  6. Step 6: Final answer
    x = 42,976.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.